Kwinkalo yokhuseleko lwevidiyo yokucupha, i-analog kunye nedijithali, kunye nenethiwekhi ihamba kunye nomnye.Iikhamera zokhuseleko zangaphambili ziyi-analog (i-Analog), ebizwa ngokuba yi-analog, ithetha ukuba zilinganisa ubungakanani bomzimba obumele isandi, ulwazi lomfanekiso, umqondiso wokukhanya wethagethi efotwayo uguqulwa ube ngumqondiso wombane, i-waveform ye-analog. uphawu lulinganisa utshintsho kulwazi.Ukukhanya okuhlukeneyo kwento efotwayo ihambelana namaxabiso ahlukeneyo okukhanya, okwangoku kwi-tube ye-elektroniki yekhamera iya kutshintsha ngokufanelekileyo.Isiginali ye-analog kukusetyenziswa kolu tshintsho lwangoku ukumela okanye ukulinganisa umfanekiso obanjwe, ukurekhoda iimpawu zabo zokukhanya, kwaye emva koko ngokumodareyitha kunye nokuthotywa kwe-demodulation, umqondiso uya kuthunyelwa kumamkeli, uboniswe kwisikrini, ubuyiselwe kumfanekiso wokuqala optical. .
Iikhamera eziqhelekileyo ze-analog ziyakwazi ukwahlula kwiikhamera ze-SD ze-analog kunye neekhamera ze-analog HD ngokwesisombululo sabo.Iikhamera ze-Analog ngokubanzi zisebenzisa izihlanganisi ze-BNC njengesixhobo sokukhupha ividiyo.
Ikhamera yeCVBS
Ikhamera ye-SD ye-Analog ikwabizwa ngokuba yikhamera ye-CVBS, into ebizwa ngokuba yi-CVBS ibhekisa kwiSibonakaliso soSasazo seVidiyo ehlanganisiweyo, oko kukuthi, isiginali yosasazo yevidiyo edibeneyo.Ihambisa idatha kwi-analog waveform.Ividiyo edibeneyo iqulethe i-chromatic aberration (i-hue kunye ne-saturation) kunye nokukhanya (ukukhanya) ulwazi kunye nokulungelelanisa kwi-pulse ehambayo, ehanjiswa ngesignali efanayo.
Iikhamera zeCVBS zisebenzisa i-TVLine (umgca wethelevishini, umgca weTV) ukulinganisa ukukwazi ukusombulula imifanekiso.Iikhamera ze-analog ze-CVBS zangaphambili zinokufikelelwa ngentloko ye-analog esweni ye-BNC ebonisa ngokuthe ngqo imifanekiso yevidiyo, kunye nokubukhali komfanekiso kule mboniselo ye-analog eneneni liqondo leenkcukacha zemigca ekufuphi emnyama nemhlophe ethe tye.Ngoko ukucaca kwekhamera ye-analog yeyunithi yokulinganisa ikwabizwa ngokuba yi-TV Line, eyaziwa ngokuba yi-TV Line (oko kukuthi, i-TVLine), ngamanye amaxesha ikwabizwa ngokuba kukucaca kwesisombululo.Isisombululo sekhamera ye-Analog ngokuqhelekileyo ivavanywa yi-ISO12233 Chart Card (iTshati), kunye noncedo lwezixhobo zomntu wesithathu, ezifana ne-ImaTest, i-HYRes, i-iSeetest kunye nezinye isofthiwe ukufunda ixabiso langempela.Umzekelo, imigca engama-650 ithetha ukuba le khamera inokwahlula ukuya kwimigca ephawulwe kwikhadi letshathi yovavanyo kufutshane nexabiso le-650.
Iiprogram zekhamera zeCVBS zininzi, undoqo weprogram nganye yi-DSP kunye ne-sensor yamacandelo amabini.Inkqubo ye-DSP yamandulo ubukhulu becala i-Sony's SS-1 (2163), SS-11 (3141/2), SS-11X (4103), SS-HQ1 (3172), SS-2, Effio-E (SS4), Effio-P, Effio-A, Effio-V, etc .. Panasonic ukuya D5 ikakhulu D4, D5 MN673276, Samsung yaseKorea, NEXTCHIP iprosesa, A-NOVA ADP series Taiwan kaThixo, njl .. Kwaye sesnor kwakhona ikakhulu Sony, Panasonic, Samsung ikakhulu.I-DSP eyahlukileyo engentla kunye ne-sensor indibaniselwano inokuqulunqwa kwizisombululo zekhamera ezahlukeneyo.
Uthotho lwe-Effio lube nguSony kwixesha lekhamera ye-analog ye-SD ingoma yokugqibela."I-Effio" yi "Iimpawu eziphuculweyo kunye neProsesa yoMfanekiso oMhle" (Iimpawu ezongezelelweyo kunye neProsesa yoMfanekiso oMhle) isifinyezo.Isisombululo esiphezulu sochungechunge lwe-Effio lujikeleze imigca ye-750 - imigca ye-800.Esi sesona sisombululo siphezulu sakha saphunyezwa yikhamera ye-analog ye-SD.Ikhamera ye-Effio eqhelekileyo ine-pixel count esebenzayo ye-976 (horizontal) x 582 (ethe nkqo), ngoko ke ikwabizwa ngokuba yikhamera ye-960H (iiphikseli ezisebenzayo ezinkulu kune-960 kwicala elithe tye).
Uchungechunge lwe-Effio lwaqaliswa malunga ne-2009, kwaye isisombululo se-Effio-P saziswa ngo-2012. Emva koko u-Sony uya kugxininisa kakhulu kwimigudu yophando kunye nophuhliso kwi-CMOS, iikhamera ze-SD ze-analog nazo ziphela ngokuthe ngcembe.
Ikhamera ye-analog HD
I-CCD eshiywe yi-Sony, ugxininiso oluphambili luya kutshintshelwa kwi-CMOS kuba iimeko ezifanayo zokusombulula, iindleko ze-CMOS ziphantsi kakhulu, kwaye isisombululo esiphezulu, sikhulu umsantsa weendleko, oku kuthetha ukuba i-CCD ayifanelekanga kwisisombululo esiphezulu. iikhamera zokhuseleko.Iikhamera zokhuseleko kwi-HD, into yokuqala ekufuneka isuswe yinzwa yeCCD.
Iithegi:Ikhamera yeCCTV, Ilensi yeCCTV
Ixesha lokuposa: Mar-15-2023
